Aika Online, the ultra large-scale war MMORPG game served by Hanbiton. Aika characterized by "1000 VS. 1000" large-scale national war revealed its wide range of war contents. Instance dungeons and raid dungeons have been increased considerably with the addition of new items. Moreover, by improving castle-attacking battles as the highlight of Aika, regular users who do not belong to a "Legion (guild)" can enjoy battles. Community functions including messengers and auction houses have also been improved and added.